Measurements of HD 40307

The HARPS radial velocity measurements of HD 40307 are folded with the orbital periods of the three discovered planets: 4.3, 9.6, and 20.4 days, respectively. In each case, the contribution of the two other planets has been subtracted. The solid line shows the best fit to the measurements, corresponding to minimum masses of 4.2, 6.7, and 9.4 Earth masses. Note that the full span of the vertical axis is only 10 m/s! Error bars indicate the accuracy of the measurements.

Crédit:

ESO

À propos de l'image

Identification:eso0819b
Type:Observation
Date de publication:16 juin 2008
Communiqués de presse en rapport:eso0819
Taille:2476 x 4094 px

À propos de l'objet

Nom:HD 40307
Type:Milky Way : Star : Circumstellar Material : Planetary System
Milky Way : Star : Evolutionary Stage : Main Sequence
Distance:40 années lumière
Catégorie:Exoplanets

Formats des images

Grand JPEG
1,1 Mio
JPEG taille écran
375,9 Kio

Couleurs & filtres

DomaineTélescope
VisibleESO 3.6-metre telescope
HARPS